Northwest Hawaiian Islands: Pearl
and Hermes Atoll

NASA image of Pearl and Hermes Atoll.(Click thumbnail map to open a larger version.)

Pearl and Hermes Atoll, located at 27.8°N, 175.8°W,
is an extensive atoll containing numerous small islets totaling 0.36
sq. km in area. The underlying basaltic structure is estimated to be 22
million years old. The coral reef environment includes 1,166 sq. km of
banks shallower than 100 m.